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The Current Transformer Accuracy On-Line Evaluation System

被引：0
|
作者：
Yan Dong [1 ]
Xie Kai [1 ]
Wang Yong [1 ]
Yang Xiao-Hui [1 ]
Ma Fei [1 ]
Qiao Li-Hong [1 ]
机构：
[1] Henan Elect Power Res Inst, High Voltage Dept, Zhengzhou 450052, Henan, Peoples R China
来源：
MATERIALS SCIENCE AND INFORMATION TECHNOLOGY, PTS 1-8 | 2012年 / 433-440卷
关键词：
current transformer; accurary evaluation; rogowski coil;
D O I：
10.4028/www.scientific.net/AMR.433-440.6880
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
The accuracy of current transformer (CT) is important guarantee of power system protection, monitoring and measurement. A new method based on live working technique for CT accuracy evaluation is proposed in this paper. Through constructing standard part, which is on-line insert into power lines, and comparing the data of standard part with the data of the measured part, the system can calculate the ratio error and phase displacement of the measured CT. The results of on-line test have shown that the proposed method is feasible and effective, and the accuracy of proposed system achieves 0.1 grades.
引用
收藏
页码：6880 / +
页数：2
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